Home / 8,245.15-12,371.79-3,861.85

Finding the Fourth Proportional to 8,245.15, 12,371.79 and 3,861.85

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Solution

The fourth proportional to 8,245.15, 12,371.79 and 3,861.85 is: 5,794.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.15 : 12,371.79 = 3,861.85 : x
  2. Step 2: Convert to fraction form
    8,245.15/12,371.79 = 3,861.85/x
  3. Step 3: Cross multiply
    8,245.15x = 12,371.79 × 3,861.85
  4. Step 4: Simplify right side
    8,245.15x = 47,777,997.21
  5. Step 5: Solve for x
    x = 47,777,997.21/8,245.15
  6. Step 6: Final answer
    x = 5,794.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.